With the exception of Leo & Jamal, any win is a great story. Tim & Marie's antics are tough to get by, but to survive a race around the world for the win would be brilliant. Jason & Amy are so nice, and nice people winning is good for everyone. Travis & Nicole have done well overall, and I'm a fan for winners would treat the entire race as if it's as important as the final race, and not suck at it, but not enough thanks to someone else performing worse.
Don't hate Leo & Jamal, but I don't see anything from them that would make a win that much special.